CSS3 过渡特性创建信封效果的联系表单

　　最近给大家分享 CSS3 效果比较多，都是充分运用了 CSS3 来实现的。通过 CSS3 的新特性，我们创作出好的交互和效果的可能性大大增加。这篇文章中，我想与大家分享使用 CSS3 过渡特性实现的信封效果的联系表单。

效果演示     插件下载

CSS3 代码：

	#form_wrap { overflow:hidden; height:446px; position:relative; top:0px;
		-webkit-transition: all 1s ease-in-out .3s;
		-moz-transition: all 1s ease-in-out .3s;
		-o-transition: all 1s ease-in-out .3s;
		transition: all 1s ease-in-out .3s;}

	#form_wrap:before {content:"";
		position:absolute;
		bottom:128px;left:0px;
		background:url('images/before.png');
		width:530px;height: 316px;}

	#form_wrap:after {content:"";position:absolute;
		bottom:0px;left:0;
		background:url('images/after.png');
		width:530px;height: 260px; }

	#form_wrap.hide:after, #form_wrap.hide:before {display:none; }
	#form_wrap:hover {height:776px;top:-200px;}

	form {background:#f7f2ec url('images/letter_bg.png');
		position:relative;top:200px;overflow:hidden;
		height:200px;width:400px;margin:0px auto;padding:20px;
		border: 1px solid #fff;
		border-radius: 3px;
		-moz-border-radius: 3px; -webkit-border-radius: 3px;
		box-shadow: 0px 0px 3px #9d9d9d, inset 0px 0px 27px #fff;
		-moz-box-shadow: 0px 0px 3px #9d9d9d, inset 0px 0px 14px #fff;
		-webkit-box-shadow: 0px 0px 3px #9d9d9d, inset 0px 0px 27px #fff;
		-webkit-transition: all 1s ease-in-out .3s;
		-moz-transition: all 1s ease-in-out .3s;
		-o-transition: all 1s ease-in-out .3s;
		transition: all 1s ease-in-out .3s;}

		#form_wrap:hover form {height:530px;}

		label {
			margin: 11px 20px 0 0;
			font-size: 16px; color: #b3aba1;
			text-transform: uppercase;
			text-shadow: 0px 1px 0px #fff;
		}

		input[type=text], textarea {
			font: 14px normal normal uppercase helvetica, arial, serif;
			color: #7c7873;background:none;
			width: 380px; height: 36px; padding: 0px 10px; margin: 0 0 10px 0;
			border:1px solid #f8f5f1;
			-moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px;
			-moz-box-shadow: inset 0px 0px 1px #726959;
			-webkit-box-shadow:  inset 0px 0px 1px #b3a895;
			box-shadow:  inset 0px 0px 1px #b3a895;
		}	

		textarea { height: 80px; padding-top:14px;}

		textarea:focus, input[type=text]:focus {background:rgba(255,255,255,.35);}

		#form_wrap input[type=submit] {
			position:relative;font-family: 'YanoneKaffeesatzRegular';
			font-size:24px; color: #7c7873;text-shadow:0 1px 0 #fff;
			width:100%; text-align:center;opacity:0;
			background:none;
			cursor: pointer;
			-moz-border-radius: 3px; -webkit-border-radius: 3px; border-radius: 3px;
			-webkit-transition: opacity .6s ease-in-out 0s;
			-moz-transition: opacity .6s ease-in-out 0s;
			-o-transition: opacity .6s ease-in-out 0s;
			transition: opacity .6s ease-in-out 0s;
		}

		#form_wrap:hover input[type=submit] {z-index:1;opacity:1;
			-webkit-transition: opacity .5s ease-in-out 1.3s;
			-moz-transition: opacity .5s ease-in-out 1.3s;
			-o-transition: opacity .5s ease-in-out 1.3s;
			transition: opacity .5s ease-in-out 1.3s;}

			#form_wrap:hover input:hover[type=submit] {color:#435c70;}

　　

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本文链接：学习使用 CSS3 制作一组漂亮的动画按钮效果

编译来源：梦想天空 ◆ 关注前端开发技术 ◆ 分享网页设计资源